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Overview

The 525C wheel skidder sets the standard for productivity and durability.

Engine

Units:
Net Flywheel Power 182.0 hp 136.0 kW Less
Engine Model Cat© C7 ACERT™ Cat© C7 ACERT™ Less
Net Power - ISO 9249 182.0 hp 136.0 kW Less
Net Power - SAE J1349 182.0 hp 136.0 kW Less
Gross Power - SAE J1995 196.0 hp 146.0 kW Less
Displacement 439.0 in3 7.2 L Less
Bore 4.33 in 110.0 mm Less
Stroke 5.0 in 127.0 mm Less
Max Torque @ Rated Speed 896 N-m at 1400 RPM 896 N-m at 1400 RPM Less
Derating Altitude 7500.0 ft 2285.0 m Less
Air Cleaner Dry precleaner Dry precleaner Less
Alternator 80 amp 80 amp Less
Fan Speed 1620.0 RPM 1620.0 RPM Less
Fan Type Blower Blower Less
Electrical System 24V 24V Less
Battery - Quantity 2 2 Less
Battery - Volts 12V 12V Less
Battery - Capacity 950 CCA 950 CCA Less
Starting System Direct electric Direct electric Less
Number of Cylinders 6 6 Less
Engine Make Caterpillar Caterpillar Less

Power Train

Travel Speed - Fwd. 1st 4.0 mph 6.4 km/h Less
Travel Speed - Fwd. 2nd 5.6 mph 9.0 km/h Less
Travel Speed - Fwd. 3rd 6.8 mph 10.9 km/h Less
Travel Speed - Fwd. 4th 9.5 mph 15.3 km/h Less
Travel Speed - Fwd. 5th 17.1 mph 27.5 km/h Less
Travel Speed - Rev. 1st 3.9 mph 6.2 km/h Less
Travel Speed - Rev. 2nd 6.5 mph 10.5 km/h Less
Travel Speed - Rev. 3rd 11.6 mph 18.6 km/h Less
Torque Converter - Type Lock-up clutch Lock-up clutch Less
Transmission 5 fwd / 3 rev countershaft, powershift 5 fwd / 3 rev countershaft, powershift Less
Steering, frame articulation +/- 45° +/- 45° Less
Brakes - Service Type Single disc WET enclosed Single disc WET enclosed Less
Brakes - Parking Type Drum brake on rear output of transmission drop box Drum brake on rear output of transmission drop box Less
Transmission Cooler Type Plate Plate Less

Hydraulic System

Circuit Type Closed center, variable flow Closed center, variable flow Less
Pump Type Axial piston Axial piston Less
Pump Output 46.0 gal/min 174.0 L/min Less
Relief Valve Setting 3045.0 psi 21000.0 kPa Less
Reservoir Tank Capacity 14.27 gal 54.0 L Less
Steering Valve Direct link, non-follow Direct link, non-follow Less
Steering Cylinder - Bore 3.5 in 88.9 mm Less
Steering Cylinder - Stroke 17.22 in 437.5 mm Less
Steering Cylinder - Rod Diameter 2.0 in 50.8 mm Less
Dozer Valve Electro-hydraulic Electro-hydraulic Less
Dozer Cylinder - Bore 4.0 in 101.6 mm Less
Dozer Cylinder - Stroke 18.5 in 470.0 mm Less
Dozer Cylinder - Rod Diameter 2.25 in 57.15 mm Less
Grapple Valve 4 or 5 stack, pilot 4 or 5 stack, pilot Less

Grapple

Bunching Capacity 12.5 ft2 1.16 m2 Less
Thinning Capacity 14.4 ft2 1.34 m2 Less
Sorting Capacity 9.0 ft2 0.83 m2 Less

Grapple, CR - Bunching

Grapple capacity 12.49 ft2 1.16 m2 Less
Tip to tip height 75.59 in 1920.0 mm Less
Tong opening 120.08 in 3050.0 mm Less
Full open height 66.02 in 1677.0 mm Less
Minimum stem diameter 6.1 in 155.0 mm Less
Full closed height 50.59 in 1285.0 mm Less

Grapple, CR - Thinning

Grapple capacity 14.42 ft2 1.34 m2 Less
Tip to tip height 77.99 in 1981.0 mm Less
Tong opening 122.99 in 3124.0 mm Less
Full open height 72.13 in 1832.0 mm Less
Minimum stem diameter 7.48 in 190.0 mm Less
Full closed height 53.98 in 1371.0 mm Less

Arch

Dual Function - Reach Max 52.6 in 1336.0 mm Less
Single Function - Reach Max 52.6 in 1336.0 mm Less

Arch, Dual Function

Lift highest, retracted 103.3 in 2623.0 mm Less
Lift highest, farthest 76.5 in 1944.0 mm Less
Lift maximum reach 52.6 in 1336.0 mm Less
Lift lowest, retracted 29.6 in 752.0 mm Less
Lift lowest, farthest 10.2 in 259.0 mm Less
Loaded tire radius 33.2 in 843.0 mm Less
Reach highest, retracted 59.6 in 1513.0 mm Less
Reach lowest, retracted 57.8 in 1469.0 mm Less
Reach lowest, farthest 98.0 in 2488.0 mm Less
Reach highest, farthest 108.9 in 2765.0 mm Less
Reach maximum 113.4 in 2880.0 mm Less

Arch, Single Function

Lift highest, retracted 87.1 in 2212.0 mm Less
Lift lowest, farthest 23.6 in 600.0 mm Less
Loaded tire radius 33.2 in 843.0 mm Less
Reach highest, retracted 64.2 in 1630.0 mm Less
Reach lowest, farthest 99.3 in 2521.0 mm Less

Winch - Grapple Skidder

Max Line Pull - Bare Drum 39342.0 lb 175.0 kN Less
Max Line Speed 132.0 ft/min 40.2 m/min Less
Drum Capacity 19.0mm (3/4in) 154.0 ft 47.0 m Less
Drum Capacity 22.2mm (7/8in) 97.0 ft 30.0 m Less
Drum capacity 25.4mm (1in) 91.0 ft 28.0 m Less
Drum Diameter 9.0 in 229.0 mm Less
Drum Width 11.0 in 279.0 mm Less

Winch - Cable Skidder

Max Line Pull - Bare Drum 41270.0 lb 183.5 kN Less
Max Line Speed 360.0 ft/min 110.0 m/min Less
Drum Capacity 19.0mm (3/4in) 148.0 ft 45.0 m Less
Drum Capacity 22.2mm (7/8in) 105.0 ft 32.0 m Less
Drum capacity 25.4mm (1in) 82.0 ft 25.0 m Less
Drum Diameter 10.0 in 254.0 mm Less
Drum Width 11.0 in 279.0 mm Less

Service Refill

Fuel Tank 83.2 gal 315.0 L Less
Cooling System 15.0 gal 56.7 L Less
Differential, Final Drive - Front 13.7 gal 52.0 L Less
Differential, Final Drive - Rear 13.7 gal 52.0 L Less
Engine Oil 7.1 gal 27.0 L Less
Transmission, Torque Converter 14.2 gal 54.0 L Less
Mechanical Winch 6.5 gal 24.5 L Less
Hydraulic System - Tank 14.3 gal 54.0 L Less
Hydraulic System - Total 29.6 gal 112.0 L Less

Dimensions

Wheelbase 139.2 in 3534.0 mm Less
Length 329.49 in 8369.0 mm Less
Overall width 133.8 in 3398.0 mm Less
Height 125.35 in 3184.0 mm Less
Ground Clearance 22.9 in 581.0 mm Less
Top roller height (cable) 110.0 in 2794.0 mm Less
Axle height 33.2 in 843.0 mm Less
Rear axle to pin 70.8 in 1798.0 mm Less
Length - overall, grapple, dual 300.2 in 7626.0 mm Less
Decking blade lift height 54.4 in 1381.0 mm Less
Decking blade dig depth 17.95 in 456.0 mm Less
Height - top of cab 125.4 in 3184.0 mm Less
Decking blade width 123.5 in 3138.0 mm Less
Tread width 103.2 in 2622.0 mm Less
Turning radius over tires 236.2 in 6000.0 mm Less

Weights

Est Operating Weight 39045.0 lb 17711.0 kg Less

MSC Comments

Spec Date 5/06 5/06 Less

Engine

The Cat power train delivers top performance, power, and durability.


Power Train

The integrated Cat power train delivers dependable, relentless pulling power.


Hydraulics

State-of-the-art hydraulic system provides dependable power and maximum efficiency.


Structures

The 525C mainframe, hitch and decking blade are designed and built to surpass the expectations of the logging industry.


Operator Station

Easy to operate, fingertip controls, less fatigue


Work Tools

Move more wood with powerful, flexible Cat grapples and winches.


Serviceability

Ease of service increases productivity.


Customer Support

Cat dealer services help you operate longer with lower costs.


525C Standard Equipment

Electrical
  • 24V electrical system
  • Alarm, back-up
  • Alternator, 80 amp
  • Batteries, maintenance free (2-1000CCA)
  • Lighting system, exterior lights (4 total)
  • Main disconnect switch
  • Starter, electric, heavy duty
  • Starting and charging system
  • Diagnostic connector
  • Horn, warning

Operator Environment
  • 12V accessory power port
  • Seat, air suspension
  • Beverage holder
  • Cab, ROPS/FOPS certified
  • Computerized Monitoring System

Power Train
  • Air cleaner, 2-stage with precleaner
  • Brakes
  • Differential locks (front, rear)
  • Driveline slipjoint, lubed for life
  • Engine, Cat C7, ACERT Technology, ATAAC
  • Fan, blower
  • Filters, fuel/engine air, primary/secondary
  • Final drives, inboard planetary
  • Fuel transfer pump (electric)
  • Fuel tank, high capacity
  • Lock-up torque converter
  • Muffler
  • Radiator with clean-out doors
  • Steering, variable flow-modulated 1/4 turn
  • Transmission, countershaft powershift (5F/3R)
  • Universal joints, lubed for life

Hydraulics
  • Closed center-load sensing system
  • Hitch hoses, Caterpillar ToughGuard™
  • Line filter, full flow return
  • Hydraulic oil cooler, Spin-on filters
  • Variable displacement piston pump, 46 gal/min (174.1 L/min)

Other standard equipment
  • Articulation lock link
  • Brush sweeps, front
  • Decking blade with replaceable bolt-on cutting edge
  • Ecology drains (engine, hyd tank, axles, transmission)
  • Engine enclosures, hinged
  • Guards, hinged - bottom and radiator
  • S•O•SSM sampling ports
  • Vandalism protection, lockable doors and cap locks

525C Optional Equipment

Power Train
  • Standard Gross Power - 146 kW (196 hp)
  • Dual Gross Power

Arch
  • Dual function
  • Single function
  • Cable skidding
  • Industrial arrangement

Axles
  • Heavy duty (wide tire/chains)
  • Standard duty

Blade
  • Narrow decking
  • Wide decking
  • Extended decking

Cab, enclosed, with window screens
  • ROPS, open
  • ROPS, enclosed with heat/AC
  • Window screens
  • Wipers, front and rear

Electrical
  • Converter, high capacity 12V, 10A continuous, 15A peak
  • Jump start receptacle

Fenders, heavy duty

Grapples - Cat Continuous Rotation
  • Bunching
  • Sorting
  • Thinning

Lights
  • Additional 8 (2 front, 2 rear, 2 per side)

Pre-cleaner, turbine

Starting aid package, cold weather

Steering, secondary

Tires and Tubes, set of four, logger (LS-2)
  • 30.5L-32, 20 PR
  • 30.5L-32, 26 PR
  • 35.5L-32, 20 PR
  • 35.5L-32, 26 PR
  • Dual ring capable
  • Narrow overall width options

Water tank

Winch
  • Grapple
  • Cable skidding

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